Why do we use microwave for communication? Uses. Microwaves are widely used for point-to-point communications because their small wavelength allows conveniently-sized antennas to direct them in narrow beams, which can be pointed directly at the receiving antenna. What type of information can be sent by microwaves? Microwaves are used mostly for point-to-point communications systems to […]
Why do horses run until they die?
Why do horses run until they die? Yes, horses can run themselves to death. While running, horses place their cardiovascular and respiratory systems under a lot of pressure, which could, in some situations, lead to a heart attack, stroke, or respiratory failure, and lead to death. Do horses really need shoes? Domestic horses do not […]
Why do we need energy to remove an electron?
Why do we need energy to remove an electron? The energy needed to remove an electron from a neutral atom is the ionization energy of that atom. It is easier to remove electrons from atoms with a small ionization energy, so they will form cations more often in chemical reactions. What would happen if an […]
Is symbiosis important to an ecosystem?
Is symbiosis important to an ecosystem? Symbiotic relationships are important because they are a major driving force of evolution. This networking and cooperation among species allows them to survive better than they would as individuals. How can symbiosis hurt the ecosystem stability? In symbiotic relationship such as mutualism and commensalism, both the organism survived and […]
What factors make fossilization more likely?
What factors make fossilization more likely? Because most decay and fragmentation occurs at the surface, the main factor that contributes to fossilization is quick burial. Marine animals that die near a river delta may be buried by sediment carried by the river. What rocks are you most likely to find fossils in? sedimentary rock What […]
How would you classify the change in matter when wood is burned?
How would you classify the change in matter when wood is burned? Burning of wood is a chemical change as new substances which cannot be changed back (e.g. carbon dioxide) are formed. For example, if wood is burned in a fireplace, there is not wood anymore but ash. Other examples include burning of a candle, […]
Where do we use concave and convex mirrors?
Where do we use concave and convex mirrors? Concave mirror is used by dentist, solar furnace, reflector of a torch, etc. Convex mirror is used in rear view mirrors. What do concave and convex mirrors have in common? Similarities between lenses and mirrors A convex lens acts a lot like a concave mirror. Both converge […]
What is the goal of a psychologist?
What is the goal of a psychologist? In the broadest of terms, a psychologist’s goal is to study and treat people who have mental illnesses or emotional difficulties, or to provide research on human behavior and how people think. There are three main types of psychologists – research, counseling and applied – and many specializations. […]
What are examples of analogous structures?
What are examples of analogous structures? But they look similar and serve a similar purpose. For example, the wings of an insect, bird, and bat would all be analogous structures: they all evolved to allow flight, but they did not evolve at the same time, since insects, birds, and mammals all evolved the ability to […]